Employee Stock Ownership Plan - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Initial term of employer loan	15 years
Related party transaction, Interest rate	1.67%
Compensation Expense	$ 3.3	$ 2.1	$ 1.5
Difference between cost and market value of committed to be released shares	$ 0.3	$ 0.1	$ 0.1

Employee Stock Ownership Plan (ESOP), Debt Structure, Employer Loan, Interest Rate During Period

No definition available.

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- Definition

Employee Stock Ownership Plan (ESOP), Debt Structure, Employer Loan, Term

+ References

No definition available.

+ Details

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- Details

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

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- Definition

The difference between cost and fair value added or subtracted from paid-in capital, arising from contribution of shares to an ESOP or commitments-to-release ESOP shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 30

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6418548&loc=d3e17042-113922

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